Adoption lawAdoption law is the generic area of legal theory, policy making, legal practice and legal studies relating to law on adoption.National adoption lawsNational, or domestic, adoption laws deal with issues such as step-parent adoption, adoption by cohabitees, adoption by single parents and LGBT adoption. Adoption laws in some countries may be affected by religious considerations such as adoption in Islam.Specific lawsLaws vary widely from country to country and in the likes of United States, from state to state.Intercountry adoption lawsIntercountry adoption laws vary widely.